Pyridine 용액에서 네자리 Schiff Base Cobalt (II) 착물들의 산소첨가 생성물에 대한 전기화학적 성질 (제 3 보)

조기형,서성섭,전동철,Ky Hyung Cho,Seong Seob Seo,Dong Chul Chon 대한화학회 1989 대한화학회지 Vol.33 No.3

네자리 Schiff base cobalt(II) 착물로서 Co(SND) 및 Co(SOPD)을 합성하여 pyridine용액에서 산소를 반응시켜 산소첨가 생성물로서 $[Co(SND)(Py)]_2O_2$ 및 $[Co(SOPD)(Py)]_2O_2$ 을 합성하였다. 이 착물들은 원소분석과 cobalt 정량, IR spectra, T.G.A. 및 자화율을 측정하여 확인하였으며, 산소 : cobalt(II) 착물의 결합비가 1:2이고, 네자리 Schiff base cobalt(II)와 pyridine 및 산소가 6배위로 결합함을 알았다. 0.1M TEAP-pyridine 용액에서 순환전압전류법에 의한 $Co(SND)(Py)_2$ 및 $Co(SOPD)(Py)_2$ 들의 Co(II)/Co(III)와 Co(II)/Co(I) 산화환원 과정은 가역 및 준가역적으로 일어난다. 산소첨가 생성물의 착물들은 비가역적으로 일어나며, 이들의 산소에 대한 환원과정은 $E_{pc} \;=\;-0.96{\sim}-1.03V$에서, 산화과정은 $E_{pa}\;=\;-0.78{\sim}-0.80V$ 범위에서 일어나며, 이들 산화환원 과정은 준가역적으로 일어남을 알았다. Tetradentate Schiff base cobalt(II) complex; Co(SND) and Co(SOPD) were synthesized, and these complexes were allowed to react with dry oxygen to form oxygen adducts cobalt(III) complexes such as $[Co(SND)(Py)]_2O_2$ and $[Co(SOPD)(Py)]_2O_2$ in pyridine. These complexes have been identified by IR specta, T.G.A., magnetic susceptibilities measurements and elemental analysis. It has been found that the oxygen adducts coblat(III) complexes have hexacoordinated octahedral configuration with tetradentate Schiff base cobalt(II), pyridine and oxygen, and the mole ratio of oxygen to cobalt(II) complexes are 1;2. The redox reaction processes of $Co(SND)(Py)_2$ and $Co(SOPD)(Py)_2$ complexes were investigated by cyclic voltammetry with glassy carbon electrode in 0.1M TEAP pyridine. The result of redox reaction processes of Co(III)/Co(II) and Co(II)/Co(I) for $Co(SND)(Py)_2$ and $Co(SOPD)(Py)_2$ complexes are reversible or quasi reversible process but oxygen adducts complexes are irreversible processes. Redox process for oxygen of oxygen adducts complexes was quasi reversible and redox range of potential was $E_{pc}\;=\;-0.96{\sim}-1.03V$ and $E_{pa}\;=\;-0.78{\sim}-0.80V.$

라잉트라이셉스익스텐션 운동후 벤치프레스 운동시 대흉근, 상완삼두근의 근전도반응과 근력발현

조기형(Cho Ki-Hyung) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.3

The purpose of this study was bench press of pectoralis major and triceps brachii on EMG response and Strength Activation after lying triceps extension. All subjects were tested for their one repetition maximum(RM) strength on the supine bench press. Surface electrodes were attached on the belly of the pectoralis major and the bellies of the triceps brachii; long, medial, and lateral head. Normalized iEMG and MEF were collected and compared to three sites on the triceps brachii and measured iEMG and MEF according to the intensity resistance training loading method. First, the iEMG of the lateral head of the triceps brachii showed bench press 10RM after lying triceps 50% 5RM and was higher than bench press 10RM after lying triceps 5RM(p<.05). Second, the 10RM practice number during the bench press 10RM after triceps brachii single joint all-out pre exercise on exercise load method showed bench press 10RM without pre exercise > bench press 10RM after lying triceps 5RM > bench press 10RM after lying triceps 50% 5RM(p<.05, p<.001). When the muscle fatigue(MEF) of pectoralis major was high, the muscle activity(iEMG) of triceps brachii became high.

WCDMA/FDD 시스템의 상향 링크 성능 평가

조기형(Kihyoung CHO),박수원(Suwon PARK),신강수(Kang Su SHIN),성단근(Dan Keun SUNG) 한국통신학회 2001 한국통신학회 학술대회 및 강연회 Vol.2001 No.4

북핵 공격에 대비한 한국의 핵 민방위 체제 구축에 관한 연구

조기형(Cho, Kee-Hyoung) 한국군사문제연구원 2017 한국군사 Vol.2 No.-

만약 한반도에서 핵전쟁이 터진다면 그 피해는 상상을 초월하는 수준이 될 것이다. 따라서 우리 국민은 핵 공격 시 수행해야 할 조기경보·전파, 소개·대피, 대피시설 활용, 행동요령 등을 숙지하고 대처함으로써 핵 공격으로부터의 개인의 생명과 재산을 보호할 수 있는 노력을 극대화해야 한다. 본 연구는 핵 방호가 가능한 ‘핵 민방위’ 체제로 전환하는데 필요한 과제 도출을 위한 연구이며, 주요 내용은 북한 핵 위협 분석, 핵 방호 실태진단, 그리고 핵 민방위 체제 구축을 위한 발전과제 등이다. 먼저, 조기경보 체계는 2∼3분 이내 예보 가능한 민군합동 탄도미사일 경보체계로 전환하여야 하며, 소개·대피는 권역별 대피개념을 수용하여 위험순위에 따른 대피시설을 준비하고, 공공용 대피시설에는 출입문, 여과기, 발전기, 비상용품 등이 보강하여야 한다. 그리고 민방위 기본법, 비상대비자원 관리법, 건축법 등을 정비하고, 핵 민방위 종합훈련 및 체험실습장 설치, 국민 행동요령 홍보 방안 등을 제시하였다. If a nuclear war breaks out on the Korean peninsula, the damage will be beyond imagination. Therefore, we should maximize efforts to protect individuals" lives and property from nuclear attack by knowing and coping with early warning and propagation, introduction, evacuation, evacuation facility utilization. Therefore, this study was conducted to elucidate the necessary tasks for the transition to the nuclear civil defense system capable of providing nuclear protection. The main contents of the study are analysis of North Korea"s nuclear threat, basic knowledge of nuclear explosion damage, and diagnosis of nuclear protection status. First, early warning system should be converted into a joint ballistic missile warning system operating jointly with a civilian sector that provides an alert within 2 to 3 minutes. The introduction and evacuation should be based on the evacuation concept by evacuation facilities, as well as filters, generators, and emergency supplies, should be prepared according to risk assessment. Together with efforts to prepare for the necessary legislations such as the Civil Defense Basic Law, the Emergency Preparedness and Resources Management Act, and the Building Law, it is essential to establish the comprehensive training of nuclear civilian defense; to install a practical training center; and to promote public action tips.

압수·수색과 행정조사의 구별 - 대법원ㅤ2017. 7. 18. 선고 2014도8719ㅤ판결 -

조기형 ( Cho Giyeong ) 법조협회 2017 최신판례분석 Vol.66 No.5

대법원 2013. 9. 26. 선고 2013도7718 판결은 관세법에 따른 통관검사절차에서 이루어지는 우편물의 개봉, 시료채취, 성분분석 등의 검사는 수출입물품에 대한 행정조사의 성격을 가지는 것으로서 영장주의 원칙이 적용되지 않는다고 판시한 바 있다. 대법원 2017. 7. 18. 선고 2014도 8719 판결은 위 2013년의 판례 법리를 그대로 확인하면서, 일견 세관의 통관검사절차와 유사한 외양을 갖추었더라도 강제수사인 압수·수색에 해당하는 경우가 있다는 점을 밝히고 있다. 위 2017년 판례를 계기로 학계는 압수·수색과 행정조사를 구별하는 기준을 다시 한 번 확인하는 작업을 수행해야만 하는 과제를 안게 되었다. 종래 대법원의 입장을 체계적으로 고찰해 볼 때, 수사는 ① 수사기관이 ② 수사의 목적으로 ③ 행하는 활동이고, 수사기관의 주관적 혐의가 객관적으로 표현된 때 개시된 것이다. 이러한 실질적인 수사 개념을 적용하여 강제수사인 압수·수색과 행정조사를 구별할 수 있다. 대법원은 범죄의 인지 시점, 피의자신문조서 해당여부, 임의동행과 강제연행의 구별, 임의제출물에 대한 영장 없는 압수의 적법성 등 다양한 사안에서 서류나 사안의 형식이나 외양이 아닌 그 실질을 판단하여 적용해야 할 형사소송법 규정 및 법리를 선택해오고 있다. 이러한 대법원의 입장을 ‘실질설’이라고 부를 수 있으며, 위 2017년 판례는 대법원이 실질설에 따라 압수·수색과 행정조사를 구별한 사례라는 의미를 지닌다. Supreme Court Decision 2013Do7718 Decided September 26, 2013 ruled that customs clearance inspection according to the cus-toms law has the characteristic of administrative investigation, therefore search and seizure warrant was not necessary. Supreme Court 2014Do8719 Decided July 18, 2017. 7 confirmed the prece-dent of 2013Do7718 and newly raised the issue of difference be-tween search and seizure and administrative investigations. The aca-demic circles must carry out the task of confirming the criteria dis-tinguishing seizure and search from administrative investigations. Systematically analyzing the position of the Supreme Court, in-vestigations is the activity of the investigation agency for the pur-pose of investigation and it is initiated when subjective accusations of investigative authorities are expressed objectively. We can dis-tinguish between search and seizure and administrative inves-tigations by applying the material concept and criteria of the Supreme Court about investigations.

본인확인을 위한 인감조합 알고리즘

조기형 (Ki Hyung Cho) 충북대학교 산업과학기술연구소 1991 산업과학기술연구 논문집 Vol.5 No.1

N/A

효율적인 프레임릴레잉 망 시뮬레이터에 관한 연구

이재욱,조기형 ( Jae Oek Lee,Ki Hyung Cho ) 충북대학교 산업과학기술연구소 1994 산업과학기술연구 논문집 Vol.8 No.2

Abstract_Roman In view of overall network performance, it is very difficult and complex job to eeiablish the si- mulation model of a whole high-speed network, because for every virtual calls the funetion of each nodes in a high-speed network is determine

영상데이타베이스에서 경계 정보를 위한 곡선 표현 기법

강규영,조기형 ( Gyu Young Kang,Ki Hyung Cho ) 충북대학교 산업과학기술연구소 1994 산업과학기술연구 논문집 Vol.8 No.2

저압 전력선 통신 변조 기법 및 전력선 채널 특성

강덕하,허윤석,조기형,이대영,Kand Duk-Ha,Heo Yoon-Seok,Cho Ki-Hyung,Lee Dae-Young 한국정보기술전략혁신학회 2002 情報學硏究 Vol.5 No.4

This thesis is about power line communication(PLC) over the low voltage grid. The main advantage with power line communication is the use of an existing infrastructure. The PLC channel can be modeled as having multi-path propagation with frequency-selective fading, typical power lines exhibit signal attenuation increasing with length and frequency. OFDM(Orthogonal Frequency Division Multiplexing) is a modulation technique where multiple low data rate carriers are combined by a transmitter to form a composite high data rate transmission. To implement the multiple carrier scheme using a bank of parallel modulators would not be very efficient in analog hardware. Each carrier in an OFDM is a sinusoid with a frequency that is an integer multiple of a base or fundamental sinusoid frequency. Therefore, each carrier is a like a Fourier series component of the composite signal. In fact, it will be shown later that an OFDM signal is created in the frequency domain, and then transformed into the time domain via the Discrete Fourier Transform(DFT).

저압 전력선 채널 특성을 고려한 OFDM변조 전송

강덕하,허윤석,조기형,이대영,Kang Duk-Ha,Heo Yoon-Seok,Cho Ki-Hyung,Lee Dae-Young 한국정보기술전략혁신학회 2003 情報學硏究 Vol.6 No.2

This paper is about power line communication(PLC) over the low power voltage grid. The main advantage with power line communication is the use of an existing infrastructure. The PLC channel can be modeled as having multi-path propagation with frequency-selective fading, typical power lines exhibit signal attenuation increasing with length and frequency. OFDM(Orthogonal Frequency Division Multiplexing) is a modulation technique where multiple low data rate carriers are combined by a transmitter to form a composite high data rate transmission. To implement the multiple carrier scheme using a bank of parallel modulators would not be very efficient in analog hardware. Each carrier in an OFDM is a sinusoid with a frequency that is an integer multiple of a base or fundamental sinusoid frequency. Therefore, each carrier is a like a Fourier series component of the composite signal. In fact, it will be shown later that an OFDM signal is created in the frequency domain, and then transformed into the time domain via the Discrete Fourier Transform(DFT).